01
Real-time speech-to-text
Spoken language becomes live captions in conversations, lectures, and meetings — so Deaf users can follow accurately and in context.
Ghana · Established 2025
A teacher should not need an interpreter to reach every student in the room.
About 470,000 people in Ghana live with hearing loss. Most classrooms, clinics, and offices still assume everyone can hear. Sign Bridge built SignNova so speech and Ghana Sign Language can move in the same conversation — without waiting for someone to arrive and interpret.
- 470K+
- People with hearing loss in Ghana
- 1 in 67
- Live with hearing impairment
- <1s
- Speech to sign
- Free
- To start, no interpreter fee
00About Sign Bridge
Deaf people are not beneficiaries of translation. They are participants in every room.
Communication barriers should not limit access to education, healthcare, employment, or daily life. We build the tools that let hearing and non-hearing people meet as equals.
Vision
A society where communication barriers no longer block education, care, work, or belonging — and where hearing and Deaf people interact with dignity and mutual understanding.
Mission
To reduce those barriers with an inclusive digital product: real-time translation, learning, and notes — designed with communities in Ghana, not as charity, but as infrastructure.
01The product
What SignNova does
Four connected capabilities — translation, notes, learning, and a sign dictionary — built as one pathway, not four isolated tools.
02
Collaborative notes
Save, organise, and share notes from discussions so important information is not lost when the conversation ends.
03
Adaptive learning
Hearing users learn signs during real interaction, building long-term independence instead of relying on a one-off workshop.
04
Dictionary and avatar
Search a library of signs and phrases, then watch a visual avatar translate text into sign language you can follow.
02Where it lands
The rooms that still shut people out
Communication between Deaf and hearing people remains a barrier across Ghana. Select a context to see how the work takes shape on the ground.
Classrooms — Ghana
Education
Class participation and comprehension suffer without accessible communication tools. SignNova lets educators create rooms where every student can follow, respond, and belong — without waiting for an interpreter.
470K+ people with hearing loss still face classroom barriers
SignNova
Real-time sign language, in the room
Speak or type, watch an avatar sign, read live captions, and learn as you go — built first for Ghana, so nobody waits for an interpreter to enter the room.
- Format
- Web + mobile
- Languages
- GSL first
- Latency
- <1s
- Cost
- Free to start
- Access
- Speech, text, avatar
03The process
How SignNova works
- 01
Speak or type
Input your message through voice or text. The model captures what you said for accurate translation.
- 02
AI reads context
Algorithms weigh tone, intent, and phrasing so the sign representation stays faithful to the conversation.
- 03
Avatar signs
A visual avatar performs grammatically correct sign language in real time — under a second of latency.
- 04
You learn
Hearing users pick up signs through use. Deaf users keep the thread. Both leave with more independence.
04The people
The team behind Sign Bridge
Builders, researchers, and community leads working so translation is not a luxury in Ghanaian rooms.
Romaric Lonfonyuy
Head of Product and Lead Developer
Accessibility-first designer and advocate.
TH
Tandangwe Horline
Data Analyst
Bridging communication gaps through technology.
Anthony
AI/ML Engineer
AI/ML expert in computer vision and NLP.
Seli Aveh
Engineer
Building inclusive technology solutions.
Jorime Clotilde
AI Research Lead
ML researcher in gesture recognition.
Victoria
Community Manager
Connecting with Deaf communities worldwide.
Help us open more rooms
Use SignNova today, or partner with Sign Bridge to bring real-time translation into schools, clinics, and workplaces across Ghana.